Practice›Java Fundamentals›Module 3. Methods ›3.2 Parameters

Task 1 of 7 · 0 solved · 7 to go0%

You can read the problem, but answers are checked only for signed-in students. Sign in to answer →

3.2 Methods — a method with a parameter

Lesson

Passing values into a method

A parameter is a named input listed in a method's (). It lets one method work on different values: you supply a value when you call it, and the method uses it. That makes a method flexible instead of doing the exact same thing every time.

Worked example

void greet(String name) {
    System.out.println("Hello, " + name + "!");
}

greet("Ada");   // Hello, Ada!
greet("Sam");   // Hello, Sam!

The parameter name takes a different value on each call.

▶ Try it: greet(String name) is defined for you. Run this, then change the names in the calls (or add more) and re-run.

public class Main {
    static void greet(String name) {
        System.out.println("Hello, " + name + "!");
    }
    public static void main(String[] args) {
        greet("Ada");
        greet("Sam");
    }
}

greet(String name) prints Hello, then the name then !. What does greet("Sam") print?

Check answer

In the call greet("Sam"), what is "Sam"?

Check answer

Fill the blank to call greet with the name Ada.

Check answer

A method hi(String name) prints Hi then the name. Type exactly what hi("Bo") prints:

Check answer

True or false?

Check answer

Next task →